I had a better experience last time.
The staff is nice and kind and the environment is clean, however it took ages for the person to do my waxing. She had to interrupt and be substituted by her boss and I went out of there 40 mins later (it was just a bikini!) with wax everywhere.
I hope it was just an error and she does not do it like that all the time!
Very happy as always with this brilliant little salon hidden away in a side-street 5 minutes walk from Holborn station. Very friendly and very capable therapists!